32 lines
2.5 KiB
C#
32 lines
2.5 KiB
C#
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// <copyright>
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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namespace System.ServiceModel.Channels
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{
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// In .net 4.0, the WebMessageEncoder uses a raw encoder, different than ByteStreamMessageEncoder. This raw encoder produces Messages for which the
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// Message.GetReaderAtBodyContents() method returns an XmlDictionaryReader positioned on content (the root element of the xml); that's because MoveToContent()
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// is called on the reader before it's returned.
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//
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// Starting with .net 4.5, the WebMessageEncoder uses the ByteStreamMessageEncoder. By default, this encoder produces Messages for which the body reader is initially
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// positioned on None (just before the root element). It does so for compatibility with .net 4.0. So we need the WebMessageEncoder to create a non-default
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// ByteStreamMessageEncoder that triggers the MoveToContent() call. We don't want to expose a direct public way to create this non-default ByteStreamMessageEncoder
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// and WebMessageEncoder (from System.ServiceModel.Web.dll) doesn't have access to the internals of ByteStreamMessageEncoder (from System.ServiceModel.Channels.dll).
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// So we use this intermediate interface.
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//
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// This is what we want to have:
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// +---------------------+------------------------------------------------------------+--------------------------------------------------------------------------+
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// | | WebMessageEncodingBindingElement/WebMessageEncoder is used | ByteStreamMessageEncodingBindingElement/ByteStreamMessageEncoder is used |
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// +=====================+============================================================+==========================================================================+
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// | .net 4.0 | the Message body reader is initially positioned on content | the Message body reader is initially positioned on None |
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// +---------------------+------------------------------------------------------------+--------------------------------------------------------------------------+
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// | .net 4.5 (or after) | the Message body reader is initially positioned on content | the Message body reader is initially positioned on None |
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// +---------------------+------------------------------------------------------------+--------------------------------------------------------------------------+
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//
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// See 252277 @ CSDMain for other info.
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internal interface IWebMessageEncoderHelper
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{
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void EnableBodyReaderMoveToContent();
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}
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}
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